Analysis
-
max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
28-12-2024 16:18
Behavioral task
behavioral1
Sample
FN_kolt_woofer.exe
Resource
win7-20240729-en
General
-
Target
FN_kolt_woofer.exe
-
Size
229KB
-
MD5
88e82fa4e92eaed5b089d99ca669fbd3
-
SHA1
c6287977d98930e7022fc1c6dfbfc4e302b724c8
-
SHA256
1a4e8449edc0e1f28f95ee9eaba0129264d90168797e65c47502996b15fbcde5
-
SHA512
5759f49a352d54c5d6be12b9f03d15757a802bde7da91f28bdac2ccc22f1afb852e3d734e54eb2e7f2129c8c4213421f991692882a15569a93430e137c1d1e7b
-
SSDEEP
6144:lloZM+rIkd8g+EtXHkv/iD4T6FcHdmOhyU9va6vyvb8e1mti:noZtL+EP8T6FcHdmOhyU9va6vM/
Malware Config
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/552-1-0x000002342AE50000-0x000002342AE90000-memory.dmp family_umbral -
Umbral family
-
Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 4520 powershell.exe 1608 powershell.exe 2056 powershell.exe 1460 powershell.exe -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\drivers\etc\hosts FN_kolt_woofer.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 20 discord.com 21 discord.com -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 6 ip-api.com -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1484 cmd.exe 3880 PING.EXE -
Detects videocard installed 1 TTPs 1 IoCs
Uses WMIC.exe to determine videocard installed.
pid Process 1028 wmic.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3880 PING.EXE -
Suspicious behavior: EnumeratesProcesses 11 IoCs
pid Process 552 FN_kolt_woofer.exe 4520 powershell.exe 4520 powershell.exe 2056 powershell.exe 2056 powershell.exe 1460 powershell.exe 1460 powershell.exe 2348 powershell.exe 2348 powershell.exe 1608 powershell.exe 1608 powershell.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 552 FN_kolt_woofer.exe Token: SeIncreaseQuotaPrivilege 2512 wmic.exe Token: SeSecurityPrivilege 2512 wmic.exe Token: SeTakeOwnershipPrivilege 2512 wmic.exe Token: SeLoadDriverPrivilege 2512 wmic.exe Token: SeSystemProfilePrivilege 2512 wmic.exe Token: SeSystemtimePrivilege 2512 wmic.exe Token: SeProfSingleProcessPrivilege 2512 wmic.exe Token: SeIncBasePriorityPrivilege 2512 wmic.exe Token: SeCreatePagefilePrivilege 2512 wmic.exe Token: SeBackupPrivilege 2512 wmic.exe Token: SeRestorePrivilege 2512 wmic.exe Token: SeShutdownPrivilege 2512 wmic.exe Token: SeDebugPrivilege 2512 wmic.exe Token: SeSystemEnvironmentPrivilege 2512 wmic.exe Token: SeRemoteShutdownPrivilege 2512 wmic.exe Token: SeUndockPrivilege 2512 wmic.exe Token: SeManageVolumePrivilege 2512 wmic.exe Token: 33 2512 wmic.exe Token: 34 2512 wmic.exe Token: 35 2512 wmic.exe Token: 36 2512 wmic.exe Token: SeIncreaseQuotaPrivilege 2512 wmic.exe Token: SeSecurityPrivilege 2512 wmic.exe Token: SeTakeOwnershipPrivilege 2512 wmic.exe Token: SeLoadDriverPrivilege 2512 wmic.exe Token: SeSystemProfilePrivilege 2512 wmic.exe Token: SeSystemtimePrivilege 2512 wmic.exe Token: SeProfSingleProcessPrivilege 2512 wmic.exe Token: SeIncBasePriorityPrivilege 2512 wmic.exe Token: SeCreatePagefilePrivilege 2512 wmic.exe Token: SeBackupPrivilege 2512 wmic.exe Token: SeRestorePrivilege 2512 wmic.exe Token: SeShutdownPrivilege 2512 wmic.exe Token: SeDebugPrivilege 2512 wmic.exe Token: SeSystemEnvironmentPrivilege 2512 wmic.exe Token: SeRemoteShutdownPrivilege 2512 wmic.exe Token: SeUndockPrivilege 2512 wmic.exe Token: SeManageVolumePrivilege 2512 wmic.exe Token: 33 2512 wmic.exe Token: 34 2512 wmic.exe Token: 35 2512 wmic.exe Token: 36 2512 wmic.exe Token: SeDebugPrivilege 4520 powershell.exe Token: SeDebugPrivilege 2056 powershell.exe Token: SeDebugPrivilege 1460 powershell.exe Token: SeDebugPrivilege 2348 powershell.exe Token: SeIncreaseQuotaPrivilege 4504 wmic.exe Token: SeSecurityPrivilege 4504 wmic.exe Token: SeTakeOwnershipPrivilege 4504 wmic.exe Token: SeLoadDriverPrivilege 4504 wmic.exe Token: SeSystemProfilePrivilege 4504 wmic.exe Token: SeSystemtimePrivilege 4504 wmic.exe Token: SeProfSingleProcessPrivilege 4504 wmic.exe Token: SeIncBasePriorityPrivilege 4504 wmic.exe Token: SeCreatePagefilePrivilege 4504 wmic.exe Token: SeBackupPrivilege 4504 wmic.exe Token: SeRestorePrivilege 4504 wmic.exe Token: SeShutdownPrivilege 4504 wmic.exe Token: SeDebugPrivilege 4504 wmic.exe Token: SeSystemEnvironmentPrivilege 4504 wmic.exe Token: SeRemoteShutdownPrivilege 4504 wmic.exe Token: SeUndockPrivilege 4504 wmic.exe Token: SeManageVolumePrivilege 4504 wmic.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 552 wrote to memory of 2512 552 FN_kolt_woofer.exe 83 PID 552 wrote to memory of 2512 552 FN_kolt_woofer.exe 83 PID 552 wrote to memory of 4292 552 FN_kolt_woofer.exe 86 PID 552 wrote to memory of 4292 552 FN_kolt_woofer.exe 86 PID 552 wrote to memory of 4520 552 FN_kolt_woofer.exe 88 PID 552 wrote to memory of 4520 552 FN_kolt_woofer.exe 88 PID 552 wrote to memory of 2056 552 FN_kolt_woofer.exe 90 PID 552 wrote to memory of 2056 552 FN_kolt_woofer.exe 90 PID 552 wrote to memory of 1460 552 FN_kolt_woofer.exe 92 PID 552 wrote to memory of 1460 552 FN_kolt_woofer.exe 92 PID 552 wrote to memory of 2348 552 FN_kolt_woofer.exe 94 PID 552 wrote to memory of 2348 552 FN_kolt_woofer.exe 94 PID 552 wrote to memory of 4504 552 FN_kolt_woofer.exe 96 PID 552 wrote to memory of 4504 552 FN_kolt_woofer.exe 96 PID 552 wrote to memory of 2644 552 FN_kolt_woofer.exe 98 PID 552 wrote to memory of 2644 552 FN_kolt_woofer.exe 98 PID 552 wrote to memory of 1412 552 FN_kolt_woofer.exe 100 PID 552 wrote to memory of 1412 552 FN_kolt_woofer.exe 100 PID 552 wrote to memory of 1608 552 FN_kolt_woofer.exe 102 PID 552 wrote to memory of 1608 552 FN_kolt_woofer.exe 102 PID 552 wrote to memory of 1028 552 FN_kolt_woofer.exe 104 PID 552 wrote to memory of 1028 552 FN_kolt_woofer.exe 104 PID 552 wrote to memory of 1484 552 FN_kolt_woofer.exe 106 PID 552 wrote to memory of 1484 552 FN_kolt_woofer.exe 106 PID 1484 wrote to memory of 3880 1484 cmd.exe 108 PID 1484 wrote to memory of 3880 1484 cmd.exe 108 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 4292 attrib.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\FN_kolt_woofer.exe"C:\Users\Admin\AppData\Local\Temp\FN_kolt_woofer.exe"1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:552 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2512
-
-
C:\Windows\SYSTEM32\attrib.exe"attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\FN_kolt_woofer.exe"2⤵
- Views/modifies file attributes
PID:4292
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\FN_kolt_woofer.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4520
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 22⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2056
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1460
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2348
-
-
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" os get Caption2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4504
-
-
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" computersystem get totalphysicalmemory2⤵PID:2644
-
-
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵PID:1412
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:1608
-
-
C:\Windows\System32\Wbem\wmic.exe"wmic" path win32_VideoController get name2⤵
- Detects videocard installed
PID:1028
-
-
C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\FN_kolt_woofer.exe" && pause2⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1484 -
C:\Windows\system32\PING.EXEping localhost3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3880
-
-
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
-
Filesize
944B
MD577d622bb1a5b250869a3238b9bc1402b
SHA1d47f4003c2554b9dfc4c16f22460b331886b191b
SHA256f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
SHA512d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9
-
Filesize
948B
MD52af06a6b36db9473e4a7d9c7ab72b70b
SHA18ef34b9b961e51bdd1b8d7d9db2ec1b0a4764645
SHA25618a2aa7e245c6732f95fb7749b2b4d29007f2c56a9c5bfbc5e3c127bdfe5f158
SHA5123495567a5d5af94ae27be51313d9e2630c52017d808042fe0d56baa34fa1d246eb15c253d14c77c77a1d8f2f1c81680e623044ae95415b095696e7fa141ac7cf
-
Filesize
1KB
MD5276798eeb29a49dc6e199768bc9c2e71
SHA15fdc8ccb897ac2df7476fbb07517aca5b7a6205b
SHA256cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc
SHA5120d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2
-
Filesize
1KB
MD558f182e303a0e041dd99733b9b230548
SHA16f96b35c2246f35e884b2951782896b4984020a0
SHA256fd2d12c08515532b9d8c8ec650c616fedfe53b7d87c58a6a5aed28c19906409b
SHA512a777c8deadf3da5e4ae3a4d19783f3e2350a45a88bc756175f702f9d786eba98e0557b37a8f8970778d425bc2a7c90f5484a5358f29466d48aa540edf6704fa0
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82